Red Line 85 Plus Diesel Fuel Enhancer - 355ml

For optimal results and continuous protection, it is recommended to use one bottle for every full tank of diesel fuel, especially if you frequently use low sulfur diesel or operate your vehicle under demanding conditions.

No, this product is specifically formulated for diesel engines only. Using it in a gasoline engine can cause damage.

No, Red Line 85 Plus is designed to be safe for all diesel engines and their associated components, including modern emissions systems like DPFs.

When stored properly in a cool, dry place, the product typically has a shelf life of several years. Check the batch code or expiration date if available on the packaging.

One 355ml (12 fl oz) bottle treats a full tank of diesel fuel, up to 378 litres (100 gallons).

It is generally not recommended to mix different fuel additives without consulting the manufacturers. Red Line 85 Plus is an all-in-one treatment designed to provide comprehensive benefits on its own.

Cetane number is a measure of a diesel fuel's combustion quality or ignitability. A higher cetane number means the fuel ignites more readily under compression, leading to smoother, more complete combustion, reduced engine noise, easier cold starts, and potentially lower emissions.

Ensure the correct dosage was added to a full tank of fuel. Results can take several hundred kilometers to become fully apparent. Verify that the issues are not due to underlying mechanical problems.

Check if the fuel filler neck has a restrictive screen. If so, a funnel may be required. Ensure the product has not thickened excessively due to extreme cold; warming the bottle slightly in a non-hazardous environment might help.

This is likely unrelated to the fuel additive. Check the fuel cap for proper sealing and ensure it is tightened correctly. If the light persists, consult your vehicle's owner manual or a mechanic.